Description
Smnl!tiCS 82S12 HIGH SPEED MULTIPORT MEMORY (8x4 MULTI PORT RAM) 82S112 DIGITAL 8000 SERIES TTL/MEMORY .
The 82S12/112 is a Schottky TTL 32 bit multiport memory organized in 8 words of 4 bits each.
Features
* LOW CURRENT INPUT BUFFERS (-25pA TYPICAL)
* SEPARATE INPUT DECODERS FOR EACH WORD
* SEPARATE OUTPUT ENABLE LINES FOR EACH
WORD
* OPEN COLLECTOR (82S12) OR TRI-8TATE (82S112)
OUTPUTS
* 2 WRITE ENABLE LINES
* FAST ACCESS (20 ns TYPICAL)
* USEFU
Applications
* SCRATCH PAD MEMORY BUFFER MEMORY ACCUMULATOR REGISTER GENERAL REGISTER
PIN CONFIGURATION
TRUTH TABLE
A
B
R/W R/W OUTPUT OUTPUT MODE
ENABLE ENABLE
0
X
1
0
X
1
0X
0
0
X
0
11
1
11
1
11
0
11
0
10
1
10
1
Outputs
1
Disabled
0
Read
1
Read
0
Read
1
Read
0
Read
1
Re
